U4 B5 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

B5 The spinal column

• Take off your jacket
  
• Put your things on your desk
  

       Book, notebook, pencil case

• Bag on the floor
  
• Read pages 

Goals

• You can explain and recognize good and bad posture
• You can explain why good  posture is important
• You can list ways to improve posture

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

What is the name of the place where muscles are connected to bones?
.... site

1. tendon
2. attachment
3. connecting

What is the name of 2 muscles that
work in an opposite way (plural)

Which of these joints can move in most directions?

1. Ball-and-socket
2. Hinge
3. Pivot
4. Turn

What happens when you contract a muscle?
The muscle becomes ..

1. longer and thicker
2. longer and thinner
3. shorter and thicker
4. shorter and thinner

Are you happy with your posture?

😒🙁😐🙂😃

Why is good posture important?

Posture

• Arises at young age
• When grown up, hard/impossible to change
• What is good posture?

Different postures

00:10

How can this woman improve her sitting posture

The spinal column

Good posture, helps prevent (back) pain
The spine has 2 mechanisms that help

• Double-S-shape
• Invertebral discs

Backmuscles have a big job in keeping this shape.

Works as a shockabsorber

Can move slightly allowing you to bend your back.

also helps absorb shocks.

Invertebral disc = anulus fibrosus

gelatinous core = nucleus pulposus

03:08-03:11

Proper ways  to carry/lift things

03:47

Why do you want to prevent bending like that

What you should do:

• Read pages  38-41
• Do asgmt  1-3, 5-8 pgs. 41-43
• Challenge: 9, 10 pg 44

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do:

• Read pages 38-41
  
• Do asgmt 1-3, 5-8 pgs. 41-43
  
• Challenge: 9, 10 pg 44

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish